| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of measuring a volume change rate and/or a length change rate, the method which allows measuring the volume change rate and/or the length change rate of a solid itself by removing the effect of the volume change rate and/or the length change rate due to a temperature change when the environmental temperature when measurement is different. SOLUTION: In the method of measuring a volume change rate and/or a length change rate of a solid by using a standard instrument, the standard instrument includes a material having a linear expansion coefficient of 8.8-12.5×10<SP>-6</SP>/°C. COPYRIGHT: (C)2011,JPO&INPIT |
